Bright Field Microscopy
... •Other specimens do not absorb light and are referred to as phase objects. Because the human eye can only detect intensity and color differences, the phase changes due to objects must be converted to intensity differences. •The phase contrast microscope is designed to take advantage of phase differe ...
... •Other specimens do not absorb light and are referred to as phase objects. Because the human eye can only detect intensity and color differences, the phase changes due to objects must be converted to intensity differences. •The phase contrast microscope is designed to take advantage of phase differe ...
Kenya Certificate of Secondary Education (KCSE) - KCPE-KCSE
... Suggest two adjustments that can be made so as to reduce the effective capacitance. ...
... Suggest two adjustments that can be made so as to reduce the effective capacitance. ...
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Evanescent-field optical microscopy: effects of polarization, tip
... flux mode. The plane of incidence is parallel to the grating lines. The p-polarization image displays a grating with steps 4.3/xm wide and 1.5 high, while the s-polarization image only vaguely reveals the grating with 0.9 /xm step height. Fig. 4a displays steep slopes on the grating edges which are ...
... flux mode. The plane of incidence is parallel to the grating lines. The p-polarization image displays a grating with steps 4.3/xm wide and 1.5 high, while the s-polarization image only vaguely reveals the grating with 0.9 /xm step height. Fig. 4a displays steep slopes on the grating edges which are ...
Geometric Optics
... • A ray parallel to the axis, after reflection, passes through the focal point F of a concave mirror, or appears to come from the (virtual) focal point of a convex mirror. • A ray through (or proceeding toward) the focal point F is reflected parallel to the axis. • A ray along the radius through or ...
... • A ray parallel to the axis, after reflection, passes through the focal point F of a concave mirror, or appears to come from the (virtual) focal point of a convex mirror. • A ray through (or proceeding toward) the focal point F is reflected parallel to the axis. • A ray along the radius through or ...
Refraction - Snell`s Law, Internal Reflection, Dispersion (PowerPoint)
... simultaneous telephone conversations, which in turn, is roughly equal to sending more than 2500 typewritten pages each second! (See QWEST advertisement). So, at present it is quite impractical to send television over copper phone lines. Today, when you talk on the phone, your voice is converted into ...
... simultaneous telephone conversations, which in turn, is roughly equal to sending more than 2500 typewritten pages each second! (See QWEST advertisement). So, at present it is quite impractical to send television over copper phone lines. Today, when you talk on the phone, your voice is converted into ...
Rays and Optical beams
... Paraxial rays through optical systems. Optical systems with an axis of symmetry (z-axis) also called the optical axis Paraxial rays are those whose inclination () relative to the optical axis is small such that sin() ~ tan() ~ We will restrict ourselves also to the case of meridional rays, i.e. ...
... Paraxial rays through optical systems. Optical systems with an axis of symmetry (z-axis) also called the optical axis Paraxial rays are those whose inclination () relative to the optical axis is small such that sin() ~ tan() ~ We will restrict ourselves also to the case of meridional rays, i.e. ...
View PDF - OMICS Group
... the SEM, scanning electron microscope and better understanding of the wave nature of light took several years after the discourses of Sir Isaac Newton. Helen Giradella a biologist at the State University of New York at Albany has studied butterfly colors and moth scales using scanning microscopy and ...
... the SEM, scanning electron microscope and better understanding of the wave nature of light took several years after the discourses of Sir Isaac Newton. Helen Giradella a biologist at the State University of New York at Albany has studied butterfly colors and moth scales using scanning microscopy and ...
4.5 Wave properties
... will exert an equal but opposite force on the rope This means that a disturbance will be created in the rope which, however is downwards and will start moving to the left ...
... will exert an equal but opposite force on the rope This means that a disturbance will be created in the rope which, however is downwards and will start moving to the left ...
Full Article
... Medical devices accomplish big feats on a small scale. This is especially the case with ophthalmic applications like contact or intraocular lenses, in which whole devices are no larger than the eye and virtually unnoticeable. Intraocular lenses, or IOLs, are similar to contact lenses, except that t ...
... Medical devices accomplish big feats on a small scale. This is especially the case with ophthalmic applications like contact or intraocular lenses, in which whole devices are no larger than the eye and virtually unnoticeable. Intraocular lenses, or IOLs, are similar to contact lenses, except that t ...
PolarView™ ND filter
... increasing the risk of over exposure in bright ambient light. To ensure optimal image exposure over a wide range of lighting conditions, the well-equipped photographer often carries a number of ND filters, each with a specific fixed optical density. Changing the filters can be cumbersome and there i ...
... increasing the risk of over exposure in bright ambient light. To ensure optimal image exposure over a wide range of lighting conditions, the well-equipped photographer often carries a number of ND filters, each with a specific fixed optical density. Changing the filters can be cumbersome and there i ...
Optical aberration
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An optical aberration is a departure of the performance of an optical system from the predictions of paraxial optics. In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.Aberration leads to blurring of the image produced by an image-forming optical system. Makers of optical instruments need to correct optical systems to compensate for aberration.The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.